<?php

/**
 * This is the model class for table "{{post}}".
 *
 * The followings are the available columns in table '{{post}}':
 * @property integer $id
 * @property integer $title
 * @property integer $content
 * @property integer $tags
 * @property integer $status
 * @property string $create_time
 * @property string $update_time
 * @property integer $author_id
 */
class Post extends CActiveRecord
{
	/**
	 * @return string the associated database table name
	 */
	const STATUS_DRAFT=1;
	const STATUS_PUBLISHED=2;
	const STATUS_ARCHIVED=3;
	/*
	public function tableName()
	{
		return '{{post}}';
	}
	*/
	public function normalizeTags($attribute,$params)
	{
		$this->tags=Tag::array2string(array_unique(Tag::string2array($this->tags)));
	}
	/**
	 * @return array validation rules for model attributes.
	 */
	public function rules()
	{
		// NOTE: you should only define rules for those attributes that
		// will receive user inputs.
		return array(
			array('title, content, status', 'required'),
			array('title', 'length', 'max'=>128 ),
			array('status', 'in', 'range'=>array(1,2,3)),
			array('tags', 'match', 'pattern'=>'/^[\w\s,]+$/', 'message'=>'Tags só podem conter caracteres' ),
			array('tags','normalizeTags'),

			// The following rule is used by search().
			// Please remove those attributes that should not be searched.
			//array('id, title, content, tags, status, create_time, update_time, author_id', 'safe', 'on'=>'search'),
		);
	}


	/**
	 * @return array relational rules.
	 */
	public function relations()
	{
		// NOTE: you may need to adjust the relation name and the related
		// class name for the relations automatically generated below.
		return array(
			'author' => array(self::BELONGS_TO, 'User', 'author_id'),
			'comments' =>array(self::HAS_MANY, 'Comment', 'post_id',
				'condition'=>'comments.status=' .Comment::STATUS_APPROVED, 'order'=>'comments.create_time DESC'),
			'commentCount' => array(self::STAT, 'Comment', 'post_id',
				'condition'=>'status=' .Comment::STATUS_APPROVED)
		);
	}

	/**
	 * @return array customized attribute labels (name=>label)
	 */
	public function attributeLabels()
	{
		return array(
			'id' => 'Id',
			'title' => 'Título',
			'content' => 'Conteúdo',
			'tags' => 'Tags',
			'status' => 'Status',
			'author_id' => 'Autor',
		);
	}
	public function getUrl()
	{
			return Yii::app()->createUrl('post/view', array ('id' => $this->id, 'title'=>$this->title,));
	}
	
	protected function beforeSave()
	{
		if(parent::beforeSave())
		{
			if($this->isNewRecord)
			{
				$this->create_time=date('l jS \of F Y h:i:s A');
				$this->update_time=date('l jS \of F Y h:i:s A');
				$this->author_id=Yii::app()->id;
			}
			else
				$this->update_time = date('l jS \of F Y h:i:s A');
			return true;
		}
		else
			return false;
	}

	protected function afterSave()
	{
		parent::afterSave();
		Tag::model()->updateFrequency($this->_oldTags, $this->tags);
	}

	private $_oldTags;

	protected function afterFind()
	{
		parent::afterFind();
		$this->_oldTags=$this->tags;
	}
	/**
	 * Retrieves a list of models based on the current search/filter conditions.
	 *
	 * Typical usecase:
	 * - Initialize the model fields with values from filter form.
	 * - Execute this method to get CActiveDataProvider instance which will filter
	 * models according to data in model fields.
	 * - Pass data provider to CGridView, CListView or any similar widget.
	 *
	 * @return CActiveDataProvider the data provider that can return the models based on the search/filter conditions.
	 */
	public function search()
	{
		// Warning: Please modify the following code to remove attributes that
		// should not be searched.

		$criteria=new CDbCriteria;

		$criteria->compare('id',$this->id);

		$criteria->compare('title',$this->title);

		$criteria->compare('content',$this->content);

		$criteria->compare('tags',$this->tags);

		$criteria->compare('status',$this->status);

		$criteria->compare('create_time',$this->create_time,true);

		$criteria->compare('update_time',$this->update_time,true);

		$criteria->compare('author_id',$this->author_id);

		return new CActiveDataProvider('Post', array(
			'criteria'=>$criteria,
		));
	}

public function addComment($comment)
{
    if(Yii::app()->params['commentNeedApproval'])
        $comment->status=Comment::STATUS_PENDING;
    else
        $comment->status=Comment::STATUS_APPROVED;
    $comment->post_id=$this->id;
    return $comment->save();
}
	/**
	 * Returns the static model of the specified AR class.
	 * @return Post the static model class
	 */
	public static function model($className=__CLASS__)
	{
		return parent::model($className);
	}
	public function tableName()
	{
		return "mt_post";
	}
}